390 search results - page 7 / 78 » Approximate Query Answering in Locally Closed Databases |
108
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SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
The rapid adoption of XML as the standard for data representation and exchange foreshadows a massive increase in the amounts of XML data collected, maintained, and queried over th...
LPNMR
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. We study the complexity of consistency checking and query answering on incomplete databases for languages ranging from non-recursive Datalog to disjunctive Datalog with n...
SIGMOD
1998
ACM
15 years 2 months ago
1998
ACM
In large data recording and warehousing environments, it is often advantageous to provide fast, approximate answers to queries, whenever possible. Before DBMSs providing highly-ac...
171
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
In this paper, we propose DBSampler, a query execution mechanism to answer "partial selection" queries in peerto-peer databases. A partial selection query is an arbitrar...
166
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
Current approaches for answering queries with imprecise constraints require user-specific distance metrics and importance measures for attributes of interest - metrics that are ha...